CN103268987A - Small-size three-in-one multi-frequency ceramic antenna - Google Patents
Small-size three-in-one multi-frequency ceramic antenna Download PDFInfo
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- CN103268987A CN103268987A CN2013101698266A CN201310169826A CN103268987A CN 103268987 A CN103268987 A CN 103268987A CN 2013101698266 A CN2013101698266 A CN 2013101698266A CN 201310169826 A CN201310169826 A CN 201310169826A CN 103268987 A CN103268987 A CN 103268987A
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Abstract
The invention provides a small-size three-in-one multi-frequency ceramic antenna which comprises a ceramic substrate, wherein two ends of the ceramic substrate are connected with a first frequency band antenna part and a second frequency band antenna part respectively, and the distance between the other end of the first frequency band antenna part and the other end of the second frequency band antenna part is very small to enhance coupling between the first frequency band antenna part and the second frequency band antenna part, produce good resonance, and improve isolation. The first frequency band antenna part and the second frequency band antenna part are connected with a communication module to receive video signals of different frequency bands, and a third frequency band antenna part is arranged between the first frequency band antenna part or the second frequency band antenna part and the communication module to receive radio-frequency signals of a third frequency band. A metal sheet and two grounding parts are arranged below vertical projections of the first frequency band antenna part and the second frequency band antenna part on the ceramic substrate, one end of each grounding part is connected with the metal sheet in a welded mode, the other end of each grounding part is grounded, the isolation is improved, and the resonance is regulated. The small-size three-in-one multi-frequency ceramic antenna can be used in two or more than three frequency bands, and the isolation among all the frequency bands is good.
Description
Technical field
The present invention relates to the design field of antenna for mobile phone, relates in particular to a kind of small size three and unifies the multifrequency ceramic antenna frequently.
Background technology
Ceramic antenna is because the dielectric constant height, can be size dwindling and then accomplish antenna miniaturization at double concerning the antenna of a fixed frequency.
Yet, the antenna of multiband is integrated into simultaneously on the ceramic body and can causes, at the bottom of the isolation variation between the frequency range, the efficient, be not easy problems such as tuning.
Summary of the invention
The present invention aims to provide a kind of small size three and frequently unifies the multifrequency ceramic antenna, can use at antenna space for a short time, and is under the situation of low section, and frequency range is more than more than two, and under the situation that insulated degree requirement is very high between the frequency range.
The present invention frequently unifies the multifrequency ceramic antenna for a kind of small size three, is positioned at the headroom district of a communication apparatus mainboard, it is characterized in that, this small size three is frequently unified the multifrequency ceramic antenna and comprised:
Dielectric matrix, two ends are connected on the described communication apparatus mainboard;
The first band antenna part is positioned at the surperficial or inner of described dielectric matrix, and an end of described first band antenna part is connected with a communication module and receives the first frequency range radiofrequency signal that described communication module sends;
The second band antenna part, be positioned at the surperficial or inner of described dielectric matrix, one end of described second band antenna part links to each other with described communication module and receives the second frequency range radiofrequency signal that described communication module sends, and the other end of described first band antenna part and the described second band antenna relative gap that forms of the other end partly;
Sheet metal is positioned at described first band antenna partly and on the dielectric matrix of the below of the described second band antenna part upright projection, described sheet metal and described first band antenna part and described second band antenna part all are coupled;
Grounded part, an end links to each other with described sheet metal, other end ground connection.
Among some embodiment, this small size three is frequently unified the multifrequency ceramic antenna and is also comprised the tri-band antenna part, be positioned at the junction of described first band antenna part or described second band antenna part and described communication module, and receive the 3rd frequency range radiofrequency signal that described communication module sends.
Among some embodiment, the two ends of described dielectric matrix are respectively arranged with pad, and an end of described first band antenna part and described second band antenna part is connected with the pad at described dielectric matrix two ends respectively.
Among some embodiment, described communication apparatus mainboard is provided with feeder line, and the pad at described dielectric matrix two ends is connected on the described communication module by described feeder line respectively.
Among some embodiment, the junction of described feeder line and described communication module is provided with match circuit, and described match circuit is used for regulating resonance frequency.
Among some embodiment, residing described first band antenna part of described tri-band antenna part or described second band antenna part are provided with inductance or capacity cell with the junction of described communication module, and described inductance or capacity cell are used for regulating resonance frequency.
Among some embodiment, the ground connection of described grounded part place is in series with inductance or capacity cell.
Among some embodiment, the material of described dielectric matrix is pottery or printed circuit board (PCB) or polytetrafluoroethylene.
The present invention makes it compared with prior art owing to adopt above technical scheme, and the advantage that has and good effect are:
(1) compares with traditional one-segment ceramic antenna, can use simultaneously in two or more frequency ranges, and isolation is better between each frequency range.
(2) with traditional multiband aerial ratio, the size of antenna can be accomplished very little, is convenient to integrated use.
Description of drawings
By reference to the accompanying drawings, by the detailed description of stating hereinafter, can more be expressly understood above-mentioned and other feature and advantage of the present invention, wherein:
Fig. 1 is the whole schematic perspective view of one embodiment of the invention;
Fig. 2 is application example cell phone mainboard part cut-away view of the present invention;
Fig. 3 is the schematic perspective view of the ceramic antenna of antenna one embodiment of the present invention itself.
Symbol description:
The 1-mainboard
2,3-pad
4,5-grounded part
6-tri-band antenna part
7,14-feed place
The 8-first band antenna part
The 9-second band antenna part
The 10-sheet metal
The 11-ceramic matrix
12,13-metal bond pad
Embodiment
Referring to the accompanying drawing that the embodiment of the invention is shown, hereinafter the present invention will be described in more detail.Yet the present invention can be with many multi-form realizations, and should not be construed as the restriction of the embodiment that is subjected in this proposition.On the contrary, it is abundant and complete open in order to reach proposing these embodiment, and makes those skilled in the art understand scope of the present invention fully.In these accompanying drawings, for clarity sake, may amplify size and the relative size in layer and zone.
Shown in figure 1-3, the invention provides a kind of small size three and frequently unify the multifrequency ceramic antenna, be arranged in the headroom district of a communication apparatus mainboard, following communication apparatus is that example is elaborated with the mobile phone.This small size three is unified in the headroom district that the multifrequency ceramic antenna is arranged at cell phone mainboard 1 frequently, and it comprises a dielectric matrix and is arranged on the dielectric matrix or near the first band antenna part 8, the second band antenna part 9, tri-band antenna part 6, sheet metal 10 and grounded part.
In the present embodiment, dielectric matrix is the ceramic matrix 11 of a rectangular strip, and certainly, the material of dielectric matrix also can be printed circuit board (PCB) or polytetrafluoroethylene etc., and other can be used as the material of antenna medium, its shape also can be decided as the case may be, does not limit herein.
In the present embodiment, the two ends of ceramic matrix 11 are respectively arranged with metal bond pad 12,13, ceramic matrix 11 by two metal bond pads 13,12 respectively with mainboard 1 be arranged at two pads 2 in the headroom district, 3 welding.One end of the first band antenna part 8 is connected with metal bond pad 13, and an end of the second band antenna part 9 is connected with metal bond pad 12; The first band antenna part, 8 other ends are relative with the other end of the second band antenna part 9, and between distance very near formation one gap, the coupling that is used for strengthening between the two produces resonance preferably, has simultaneously and improves the effect of isolation between the two.The first band antenna part 8 and the second band antenna part 9 realize by surface or volume inside multilayer cabling mode at ceramic matrix 11, decide as the case may be, do not limit herein.The first band antenna part 8 and the second band antenna part 9 can be serpentine modes as shown in Figure 3, can be shapes such as straight line, triangle, circle, arc, helix, the structure of some disconnections is arranged in the middle of also can being, decide as the case may be, do not limit herein.
In the present embodiment, the welded disc 3,2 of junction, ceramic matrix 11 two ends is connected to communication module through the cabling on one section cell phone mainboard respectively and gets on, and receives different radiofrequency signals.Concrete, the first band antenna part 8 is connected to communication module by metal bond pad 13 and pad 2 backs by one section feeder line that is arranged on the communication apparatus mainboard and gets on, and the first frequency range radiofrequency signal of feed-in on the reception communication module, at communication module and the feed place 14 that the first band antenna part 8 is connected, can add match circuit to regulate resonance frequency; The second same band antenna part 9 is connected to communication module by metal bond pad 12 and pad 3 backs by one section cabling and gets on, and the second frequency range radiofrequency signal of feed-in on the reception communication module, at communication module and the feed place 7 that the first band antenna part 8 is connected, can add match circuit and regulate resonance frequency.
In the present embodiment, as shown in Figure 2, tri-band antenna part 6 can be arranged at welded disc 3 and feed place 7 between the optional position on, this moment, tri-band antenna part 6 and the second band antenna part 9 shared a kind of communication module of signal types, received the radiofrequency signal of different frequency range.14 radiofrequency signals that add GPS at the feed place for example, this moment, the first band antenna part 8 was accepted the radiofrequency signal of GPS, the radiofrequency signal of 7 adding WIFI at the feed place, then the second band antenna part 9 and tri-band antenna part 6 can receive the radiofrequency signal of WIFI 2.4G and the WIFI 5G of different frequency range respectively, thereby form three antennas of unifying frequently; Tri-band antenna part 6 also can be arranged at welded disc 2 and feed place 14 between the optional position on, with the communication module of a kind of signal type of the first band antenna partial common and accept the radiofrequency signal of different frequency range; In addition, the radiofrequency signal that communication module adds not only is confined to GPS, WIFI 2.4G and WIFI 5G communication frequency band, can set as the case may be; Certainly, also tri-band antenna part 6 can be set, this moment, antenna provided by the invention only was operated in two frequency ranges.
In the present embodiment, the tri-band antenna part 6 residing first band antenna parts 8 or the second band antenna part 9 are provided with inductance or capacity cell with the junction of communication module, and inductance or capacity cell are used for regulating resonance frequency.
In the present embodiment, ceramic matrix 11 below the first band antenna part 8 and the second band antenna part, 9 upright projections is provided with a sheet metal 10, as shown in Figure 3, sheet metal 10 can be rectangle sheet as shown in Figure 3, also can be shapes such as straight line, triangle, circle, arc, helix, the structure of some disconnections is arranged in the middle of can also being, do not limit herein.And the cabling of sheet metal 10 is not limited to the plane of ceramic matrix 11, can be by realizing at ceramic matrix 11 volume inside multilayer cabling modes.The metal bond pad 12,13 at sheet metal 10 and the first band antenna part 8 and the second band antenna part 9 and ceramic matrix 11 two ends all is coupled.
In the present embodiment, be welded with one or two grounded antennas as shown in Figure 2 on the sheet metal 10, be respectively grounded part 4 and grounded part 5, one end of grounded part 4 and grounded part 5 be welded on the sheet metal 10 and with ceramic matrix 11 on the antenna coupling, the other end of grounded part 4 and grounded part 5 links to each other with the ground of main equipment, and grounded part 4 and grounded part 5 play the effect that improves isolation and regulate resonance.The ground connection of grounded part 4 and grounded part 5 place can connect an inductance or capacity cell are used for regulating the resonance frequency, play the effect of improving isolation indirectly.Wherein, two strips that grounded part 4 and grounded part 5 can be as shown in Figure 2 can be straight line, triangle, circle, arc, helix etc., shape also, do not limit herein.The cabling of grounded part 4 and grounded part 5 is not limited to the plane, can realize by the multilayer cabling mode at cell phone mainboard; And grounded part 4 and grounded part 5 can be merged into a cabling form, also can be divided into the cabling of some similar fashion again, do not limit herein.
In sum, the invention provides a kind of small size three and unify the multifrequency ceramic antenna frequently, be positioned at the dead zone of advancing of cell phone mainboard, comprise that one is welded to the ceramic matrix on the cell phone mainboard, the two ends of ceramic matrix connect an end of first band antenna part and second band antenna part respectively, first band antenna part and second band antenna were connected on the communication module vision signal of reception different frequency range after partly advancing the metal bond pad at ceramic matrix two ends by the end feeder line on the mainboard; Be provided with the tri-band antenna part between being connected of first band antenna part or second band antenna part and communication module, receive the radiofrequency signal of the 3rd frequency range.The below of first band antenna part and the second band antenna part upright projection is provided with a sheet metal and two grounded parts on the ceramic matrix, article two, grounded part one end and sheet metal welding, the other end links to each other with the ground of main equipment, plays the effect that improves isolation and regulate resonance.Small size provided by the invention three is unified the multifrequency ceramic antenna frequently can use frequency range more than two or three simultaneously, and isolation is better between each frequency range.
Those skilled in the art should be understood that the present invention can not break away from the spirit or scope of the present invention with many other concrete forms realizations.Although also described embodiments of the invention, the present invention should be understood and these embodiment should be restricted to, make within the spirit and scope of the invention that those skilled in the art can define as appended claims and change and revise.
Claims (8)
1. a small size three is frequently unified the multifrequency ceramic antenna, is positioned at the headroom district of a communication apparatus mainboard, it is characterized in that, this small size three is frequently unified the multifrequency ceramic antenna and comprised:
Dielectric matrix, two ends are connected on the described communication apparatus mainboard;
The first band antenna part is positioned at the surperficial or inner of described dielectric matrix, and an end of described first band antenna part is connected with a communication module and receives the first frequency range radiofrequency signal that described communication module sends;
The second band antenna part, be positioned at the surperficial or inner of described dielectric matrix, one end of described second band antenna part links to each other with described communication module and receives the second frequency range radiofrequency signal that described communication module sends, and the other end of described first band antenna part and the described second band antenna relative gap that forms of the other end partly;
Sheet metal is positioned at described first band antenna partly and on the dielectric matrix of the below of the described second band antenna part upright projection, described sheet metal and described first band antenna part and described second band antenna part all are coupled;
Grounded part, an end links to each other with described sheet metal, other end ground connection.
2. small size three according to claim 1 is unified the multifrequency ceramic antenna frequently, it is characterized in that, this small size three is frequently unified the multifrequency ceramic antenna and is also comprised the tri-band antenna part, be positioned at the junction of described first band antenna part or described second band antenna part and described communication module, and receive the 3rd frequency range radiofrequency signal that described communication module sends.
3. small size three according to claim 1 and 2 is unified the multifrequency ceramic antenna frequently, it is characterized in that, the two ends of described dielectric matrix are respectively arranged with pad, and an end of described first band antenna part and described second band antenna part is connected with the pad at described dielectric matrix two ends respectively.
4. small size three according to claim 3 is frequently unified the multifrequency ceramic antenna, it is characterized in that described communication apparatus mainboard is provided with feeder line, and the pad at described dielectric matrix two ends is connected on the described communication module by described feeder line respectively.
5. small size three according to claim 4 is frequently unified the multifrequency ceramic antenna, it is characterized in that the junction of described feeder line and described communication module is provided with match circuit, and described match circuit is used for regulating resonance frequency.
6. small size three according to claim 2 is unified the multifrequency ceramic antenna frequently, it is characterized in that, residing described first band antenna part of described tri-band antenna part or described second band antenna part are provided with inductance or capacity cell with the junction of described communication module, and described inductance or capacity cell are used for regulating resonance frequency.
7. small size three according to claim 1 and 2 is frequently unified the multifrequency ceramic antenna, it is characterized in that, the ground connection place of described grounded part is in series with inductance or capacity cell.
8. small size three according to claim 1 and 2 is frequently unified the multifrequency ceramic antenna, it is characterized in that the material of described dielectric matrix is pottery or printed circuit board (PCB) or polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169826.6A CN103268987B (en) | 2013-05-10 | 2013-05-10 | A kind of small size three is unification multifrequency ceramic antenna frequently |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310169826.6A CN103268987B (en) | 2013-05-10 | 2013-05-10 | A kind of small size three is unification multifrequency ceramic antenna frequently |
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| CN103268987A true CN103268987A (en) | 2013-08-28 |
| CN103268987B CN103268987B (en) | 2015-07-29 |
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| CN201310169826.6A Expired - Fee Related CN103268987B (en) | 2013-05-10 | 2013-05-10 | A kind of small size three is unification multifrequency ceramic antenna frequently |
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| WO2014169606A1 (en) * | 2013-09-09 | 2014-10-23 | 中兴通讯股份有限公司 | Built-in antenna terminal |
| CN106558752A (en) * | 2015-09-28 | 2017-04-05 | 启碁科技股份有限公司 | Antenna system |
| US9786980B2 (en) | 2015-09-23 | 2017-10-10 | Wistron Neweb Corp. | Antenna system |
| WO2018014702A1 (en) * | 2016-07-20 | 2018-01-25 | 华为技术有限公司 | Antenna and mobile terminal |
| CN109950695A (en) * | 2019-02-28 | 2019-06-28 | 禾邦电子(苏州)有限公司 | A kind of method of communication apparatus and realization 5G mobile communication |
| CN110057487A (en) * | 2019-04-19 | 2019-07-26 | 中北大学 | Full ceramics superhigh temperature pressure sensor and its packaging method |
| CN113497350A (en) * | 2020-04-08 | 2021-10-12 | 海信集团有限公司 | Antenna, wireless communication module and terminal |
| CN114512806A (en) * | 2022-02-28 | 2022-05-17 | 歌尔智能科技有限公司 | Double-frequency ceramic antenna and electronic equipment |
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| CN103268987B (en) | 2015-07-29 |
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